Bristol Palin and son Tripp appear in a promotional photo for her new Lifetime reality show 'Bristol Palin: Life's a Tripp,' which premieres on June 19, 2012 at 10 p.m. / Bristol Palin, boyfriend Gino and son Tripp appear in a promotional photo for her new Lifetime reality show 'Bristol Palin: Life's a Tripp.' (A and E Television Networks, LLC. / Richard Knapp)

Bristol Palin, the 21-year-old outspoken daughter of Conservative leader and former Alaska Governor Sarah Palin, says viewers of her new Lifetime reality show, "Life's A Tripp," will see she is a "grounded, normal mom" to her 3-year-old son and adds that her faith in God helps motivate her to stand up to critics.

Bristol, who is one of the most famous single mothers in America, made her comments on the ABC series "Good Morning America" on an episode that aired on Monday, June 11. "Bristol Palin: Life's A Tripp" is named after her child and showcases her relationship with her boyfriend and family, including her mother, who also appears on the show. In one scene, Bristol defends the politician during a heated exchange with a man in a bar.

"I think if someone's going to talk poorly about my mom, I'm going to pick and choose my battles and a battle like that I chose to confront him and see what the real problem was," Bristol said. "I'm excited for viewers to see the real me in that 'cause I'm sitting there all tough, I'm shaking and I'm acting tough and then instantly, when it's over, it's like, 'OK, there's the real Bristol" 'cause I'm calling my boyfriend, I'm calling my mom - 'Aaah, get me outta here.'"

"People are going to see the real Bristol in the show," she said. "A grounded, normal mom."

Bristol was 18 when she gave birth to Tripp out of wedlock, which stirred controversy during her mother's 2008 vice presidential campaign. Bristol continuously faces criticism over her past, her mother's political stances as well as her own statements, including a recent scathing blog post slamming President Barack Obama for his expression of support for gay marriage.

"I think I have tough skin and I know that God's on my side," Bristol said on "Good Morning America." "My faith is everything to me and it's just the root of my life and my family's life and I think it'll do well. When people are talking poorly about me, I think that gives me motivation to want to do more and want to speak up even louder and they're just not doing themselves well by doing that."

She said her mother supports her new Lifetime series, adding: "She knows that I have good judgment."

When asked if she thinks people will get a different idea of who she is after watching "Life's A Tripp," Bristol said: "I'm not sure if they will 'cause I think the people who don't like me - I'm not trying to change their opinion on it but it's going to be a good show."

After she gave birth, Bristol Palin became a teenage pregnancy prevention advocate. She has made personal and on-air appearances on behalf of the Candie's Foundation, whose mission statement is "to educate America's youth about the devastating consequences of teen pregnancy through celebrity PSA campaigns and initiatives." The company paid her $262,500 in 2009 for her services.